4. Radiant energy
  5. Radiation tracer methods
  6. Radioactive tracer methods

John W. Chisholm

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Gamma ray spectral tool for well logging

Radiant energy – Geological testing or irradiation – Well testing apparatus and methods
Patent

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Highwall mining system

Mining or in situ disintegration of hard material – Processes – With material-handling
Reexamination Certificate

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Surface located isotope tracer injection apparatus

Radiant energy – Radiation tracer methods – Radioactive tracer methods
Patent

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Profile ID: LFUS-PAI-P-1745464

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